Abstract: A method for preparing a positive electrode material and related products are disclosed. The method includes mixing a lithium source with a phosphoric acid solution to form a first mixture; combining the first mixture with manganese hydrogen phosphate, an iron source, and optionally a source of an M element to form a second mixture; and drying and sintering the second mixture to obtain a lithium manganese iron phosphate (LMFP) positive electrode material. The M element is selected from transition metals other than manganese and iron, Group IIA metals, Group IIIA metals, Group IVA metals, and Group VIIA elements. The resulting LMFP material exhibits reduced gas and by-product generation, increased compacted density, lowered resistivity, and improved specific capacity and rate performance, making it suitable for positive electrode plates, batteries, and electric apparatuses.

Abstract: A precursor material, a method for preparing the precursor material, a positive electrode material, a method for preparing the positive electrode material, a positive electrode plate, a battery, and an electric apparatus. The precursor material includes a compound MnxFeyM(1-x-y)HPO4·nH2O, where 0.9?x+y<1, 0<x?0.9, 0<y?0.9, 0?n?6, and M includes one or more of transition metal elements other than manganese and iron, Group IIA metal elements, Group IIIA metal elements, and Group IVA metal elements. The precursor material has a uniform distribution of elements and good batch consistency, and a prepared positive electrode material has a uniform distribution of elements and good batch consistency, improving the specific capacity and cycling performance of a battery.

Abstract: A method for preparing a positive electrode material, a positive electrode material, a positive electrode plate, a battery, and an electric apparatus are provided. The method for preparing a positive electrode material includes: mixing a precursor lithium manganese iron phosphate, a carbon source, and a source of a doping element in a solvent, drying, and sintering to obtain a positive electrode material. The positive electrode material includes a core and a coating layer coating the core; the core includes LiMnxFe1-xPO4, where 0<x<1; the coating layer includes carbon and a doping element; and the doping element includes one or more of Group IIA elements, Group IIIA elements, Group IVA elements, and transition metal elements. The method reduces the powder resistivity and specific surface area of the positive electrode material, and improves the gram capacity and cycling performance of a battery.

Abstract: A method for preparing a positive electrode material, a positive electrode material, a positive electrode plate, a battery, and an electric apparatus are disclosed. The method includes: mixing a precursor material, a lithium source, and an optional phosphorus source, and sintering to obtain a pre-product, where the precursor material includes a compound MnxFeyM(1-x-y)HPO4·nH2O, 0.9?x+y<1, 0<x?0.9, 0<y?0.9, 0?n?6, and M includes one or more of transition metal elements other than manganese and iron, Group IIA metal elements, Group IIIA metal elements, and Group IVA metal elements; and mixing the pre-product, a carbon source, and a solvent, drying, and sintering to obtain a positive electrode material. The positive electrode material of this application exhibits uniform element distribution, good material stability, high compacted density, low powder resistivity, and good electronic conductivity, thereby improving the specific capacity and cycling performance of a battery.

Abstract: A data processing method and apparatus, a device, and a readable storage medium are provided. The method includes: performing figure acquisition on a first object in response to a login operation on an application client, and displaying a first virtual object associated with an acquired object figure of the first object; displaying, in a case that a virtual conversation space is entered by using the first virtual object, one or more virtual objects in the virtual conversation space, the one or more virtual objects including the first virtual object, and a space figure of the virtual conversation space being associated with the one or more virtual objects; and displaying a conversation message corresponding to each of the one or more virtual objects in the virtual conversation space. A virtual object in an application is displayed efficiently in a diversified manner, and virtual object display modes are enriched.

Abstract: A data processing method and apparatus, a device, and a readable storage medium are provided. The method includes: performing figure acquisition on a first object in response to a login operation on an application client, and displaying a first virtual object associated with an acquired object figure of the first object (S101); displaying, in a case that a virtual conversation space is entered by using the first virtual object, one or more virtual objects in the virtual conversation space, the one or more virtual objects including the first virtual object, and a space figure of the virtual conversation space being associated with the one or more virtual objects (S102); and displaying a conversation message corresponding to each of the one or more virtual objects in the virtual conversation space (S103). A virtual object in an application is displayed efficiently in a diversified manner, and virtual object display modes are enriched.

Abstract: A data processing method includes displaying, in an application interface, a message list including a message preview box that includes an avatar area and a target area not overlapping the avatar area, displaying, in the message preview box, a preview message generated based on an original interaction message, displaying, in the target area, a resource animation including a virtual image and determined based on media content in the original interaction message and a media format of the media content, and executing, in response to a trigger operation on the resource animation, a message service associated with the original interaction message.

Abstract: A data processing method and apparatus, a device, and a readable storage medium are provided. The method includes: performing figure acquisition on a first object in response to a login operation on an application client, and displaying a first virtual object associated with an acquired object figure of the first object (S101); displaying, in a case that a virtual conversation space is entered by using the first virtual object, one or more virtual objects in the virtual conversation space, the one or more virtual objects including the first virtual object, and a space figure of the virtual conversation space being associated with the one or more virtual objects (S102); and displaying a conversation message corresponding to each of the one or more virtual objects in the virtual conversation space (S103). A virtual object in an application is displayed efficiently in a diversified manner, and virtual object display modes are enriched.

Abstract: A method for generating and compressing multi-sweep-frequency radar signals is provided, based on the idea of reducing the power density of signals on a time-frequency domain. By using a method of circumferentially shifting and superposing a single sweep-frequency signal, sweep-frequency signals multiplexed simultaneously at time and frequency are generated, and for the generated multi-sweep-frequency signals, the sweep-frequency signals are multiplexed simultaneously at time and frequency in a single pulse time period. The multi-sweep-frequency signals multiplexed at frequency are used to perform matched filtering, and then perform segmented accumulation to obtain distance resolution which is inversely proportional to the bandwidth and the signal-to-noise ratio after the single sweep-frequency signal is compressed under the same energy condition, thereby realizing secondary compression on the multi-sweep-frequency signals.